How do I swap a VOB in a custom DVD?

['Crispz]

Hope someone can help on this - it's driving me mad!

I've got a custom made DVD, basically made of 7 VOB files (1 is a locked intro animation which plays before the main manu, and the other 6 are the 6 programmes on the disc).

I want to swap the intro animation VOB file for a shorter one (and possibly take the lock off though that's not crucial) and can't work out how to do it.

I've edited the intro VOB down so it's shorter in length, and I assumed if I gave it the same filename the disc would still work, but my player thinks the intro is now appx 25mins long, and gives a plain black screen. :-/

I played with an editor on a Mac (can't remember the program name, it was a few weeks ago) and it corrected a few errors within the IFO structure after I swapped the files, but it wouldn't recognise that the new VOB was shorter, which I guess is the reason why it still didn't work. :-(

I've got access to my mate's PC now - anyone able to guide me in what to do???? Cheers!

[blutach]

Welcome to Doom9!

The intro sounds like its a title on its own. Use VobBlanker (http://jsoto.posunplugged.com/vobblanker.htm)'s replace feature to replace the offending title with the new one.

Regards

[r0lZ]

You can never replace a VOB by another one without modifying the IFOs too, as they are interrelated.

However, it is possible to shorten a title, using only free tools (under Windoze.)

Load your original DVD in DVDShrink. Go to re-author mode, and build a compilation with only the title you want to edit by dragging it to the left pane. Select that title, and modify its start and/or end points. Then, generate the backup in a new folder. At this point, you should have produced a new, complete standard-compliant short DVD, with the required VOB, IFO and BUP files.

Load your original DVD in PgcEdit. Select the title to be replaced by clicking on it in the left pane. Now, use File -> Replace VTST Titles, and navigate to the new DVD folder you have just created, and select VTS_01_1.IFO. When prompted if you want to keep some data from the original IFOs, answer yes. PgcEdit will then copy (or move) the new VOB, and modify the IFOs accordingly. When done, save the DVD.

If you burn the DVD with a stupid program like Ner0, don't forget to remove the PgcEdit_backup folder first! You don't need to do so if you burn it with ImgBurn.

[EDIT] Blu was faster. VobBlanker is also a good solution.

['Crispz]

wicked - thanks for the quick info - VobBlanker sounds the easy way to go. ;-)

I've just read the spec and it says it needs a 'file mode, unencrypted backup' - what's that? My DVD's unenctrypted coz it's home made, but what's file mode? Will just pointing it at the Video_TS folder copied onto the HD work?

Also - just wanna check VobBlanker won't re-encode any of the video?

[bigotti5]

this means no *.iso (just the ifo, bup and vob files) and no css encrypted files

['Crispz]

yoink - i've opened up the IFO in VobBlanker and can see the 7 VOB files plus a video_ts.vob

The one I want to replace is the 7th one - I've got the replacement Vob file sitting on the desktop, but not sure how to get VobBlanker to do the switch??

VobBlanker has got millions of buttons! Anyone able to help? :) I tried selecting the offending VTS_07_*.vob in the VTS area and the single PGC that appeared for it in the PGCs area - but when I then press 'Replace' it will only let me load IFO files and not VOBs. I don't have any IFO file for my edited version of the VOB I want to replace. Am I being stupid here????

[blutach]

You need to select the VTS (7) and click Process on the right. Then replace/blank the title.

Regards

['Crispz]

Hmmm... I selected the VTS_07_*.vob but the 'Process' button on the right remains dimmed - I cannot click it.

So instead I pressed the 'PROCESS!!' button at the bottom and it processed all the titles ok, but still the only thing I seem to be able to replace is the IFO for the title and not the title/vob itself. :-(

Any ideas anyone??? I'm really in the dark here.

[Dimad]

You can do it using copy/paste in DvdReMake Pro.

['Crispz]

Thanks Dimad - can I achieve it in the demo version? I don't wanna pay for software as I'm on a Mac and having to use my mate's PC for this task. Just after a quick fix really.

Anyone able to help more on my VobBlanker query in post #8 ?

[r0lZ]

Are you sure that the VOBs are not write-protected?

['Crispz]

Hi r0lz - just checked and no, none of the files are write protected.

Any other suggestions as to why the Process button won't work??

['Crispz]

Bump - any ideas anyone? Still stuck in VobBlanker :-/

[blutach]

@Crispz

I know it is not "5 minutes" but please do not bump your posts.

Regards

[jsoto]

I tried selecting the offending VTS_07_*.vob in the VTS area and the single PGC that appeared for it in the PGCs area - but when I then press 'Replace' it will only let me load IFO files and not VOBs. I don't have any IFO file for my edited version of the VOB I want to replace. Am I being stupid here????
VobBlanker needs an IFO with a single PGC to do the replacement. You can create the IFOs from your set of VOB files using IFOEDIT.
- Put all the VOB files in the same folder with no other files
- Open IFOEdit
- Click on create IFOs button
- Select the VOB file VTS_01_1.VOB
- Select the options "create 1 PGC only" and "One chapter per cell"
- Go ahead. (click OK)
- Once IFOEdit has finished, remember to click on "Get VTS sectors" to properly update the IFO sector pointers

Now, you have a DVD structure with one one PGC.
- Open VobBlanker
- select VTS_07_*.vob in the VTS area
- select the PGC
- Click on Replace and select the VTS_01_1.IFO created by IFOEDIT
- Click on Process

jsoto